What's are some of your fave brands?

Hello nail polish lovers! I consider myself fairly new to the nail polish world and I started by buying whatever cost the least.  Now I look for quality of brush and I check to see if the polish is really thick or clunky.  I'm sure there are other important things to check for but I am not aware just yet. Not to down any brands but I find that "Spoiled" has some of the worst brushes.  I have yet to purchase "O.P.I" but from what I hear they are the best brand.  What do you think and what are some of your favorite brands?  Thanks and Happy painting!